MovieApp – Spring Boot CRUD Application

A web application for managing a movie collection, built with Spring Boot, Spring MVC, Spring Data JPA, and Thymeleaf.

Features

• List all movies with search and filter functionality
• Create new movies via form
• Edit existing movies
• Delete movies
• Filter by title, director, genre, and minimum rating
• Pagination with configurable page size
• Validation with error messages in forms
• Custom error handling with meaningful error pages

Tech Stack

• Java 25
• Spring Boot 4.0.3
• Spring MVC
• Spring Data JPA
• Thymeleaf
• H2 (in-memory database)
• Bean Validation (Jakarta Validation)
• JUnit 5 + Mockito

Project Structure

src/main/java/com/example/movieapp/
├── config/
├── controller/
│   ├── HomeController.java
│   └── MovieController.java
├── dto/
│   ├── CreateMovieDTO.java
│   ├── MovieDTO.java
│   ├── MovieFilterDTO.java
│   └── UpdateMovieDTO.java
├── entity/
│   └── Movie.java
├── exception/
│   ├── DuplicateTitleException.java
│   ├── GlobalExceptionHandler.java
│   └── ResourceNotFoundException.java
├── mapper/
│   └── MovieMapper.java
├── repository/
│   └── MovieRepository.java
└── service/
    └── MovieService.java

src/main/resources/
├── static/
├── templates/
│   ├── error/
│   │   └── error.html
│   └── movies/
│       ├── create.html
│       ├── detail.html
│       ├── edit.html
│       └── list.html
└── application.properties

Getting Started

Prerequisites

• Java 25
• Maven

Run the application

mvn spring-boot:run

Open your browser and navigate to http://localhost:8080.

Run the tests

mvn test

Architecture

The application follows a layered architecture:

• Controller – Handles HTTP requests and returns Thymeleaf views
• Service – Contains business logic and coordinates between controller and repository
• Repository – Data access layer using Spring Data JPA
• Mapper – Converts between entities and DTOs
• Entity – JPA-mapped domain object persisted to the database
• DTO – Separate data transfer objects for create, update, and view operations

Movie Fields

Field	Type	Description
id	Long	Auto-generated primary key
title	String	Movie title (max 200 characters)
description	String	Movie description (max 2000 characters)
releaseDate	LocalDate	Release date
director	String	Director name
runtimeMinutes	Integer	Runtime in minutes (1-1200)
genre	String	Movie genre
rating	Double	Rating from 0.0 to 10.0

API Endpoints

Method	URL	Description
GET	/movies	List all movies with optional filters
GET	/movies/{id}	View movie detail
GET	/movies/new	Show create form
POST	/movies/new	Save new movie
GET	/movies/{id}/edit	Show edit form
POST	/movies/{id}/edit	Update movie
POST	/movies/{id}/delete	Delete movie